Ben thinks Adrian is lying about being pregnant and doesn't act like himself. Elsewhere, Jack finds out his family is moving and thinks about not moving with. Also, Ashley has a talk with her doctor about birth control.

Amy is received into a music program in New York City but, she concerns it's too far away to actually be able to move. In the meantime, Jack has to detect a place to live aft he chooses not to move with his parents.

Ben decides to try his hardest to keep his secret from Amy and cut himself off from Adrian, but things become complicated when his father tells Adrian's father about the pregnancy. Meanwhile, Amy is pleasantly surprised to find that her family and friends are pushing for her to attend the music program in New York. Also, George and Anne continue to argue, specifically about some of Ashley's most recent decisions.

After Amy leaves for New York, Ricky moves into her house temporarily to take care of John, which doesn't please Anne and George, since something appears to be going on between Ricky and Ashley. Elsewhere, Adrian goes to her mother for advice on what to do about her pregnancy, and her parents' differing opinions threaten to split their family apart. Ben also wrestles with the reality of the situation and vows not to let it ruin his future with Amy.

Band geeks are spreading rumors through the school that Amy is pregnant again. Ricky is especially furious with these rumors and insists they aren't true. Later, when Ricky and Ashley are alone, they kiss! Ricky backs away and hurries out of the room. Meanwhile, in New York City, Bristol Palin shows up at Amy’s dorm room and Amy finds out that all of the girls in the music program are teen mothers.

Adrian meets Ricky's mom at the clinic and admits to her that she does not want to be a teenage mother but after talking, she has a change of heart and tells Ben that she will not go through with the abortion. When Ricky gets a call from Amy, he hangs up and Ashley receives a text message from Adrian, saying that she will have the baby. Ashley, therefore, tells Anne and George, and also attempts to convince her parents to withhold the information from Amy until after Ben tells her. When Ben and Adrian visit Grace to tell her the news, Tom overhears the conversation and relays it to Jack. Ben and Jack both tell Madison about Adrian's decision, and she attempts to tell Ben to tell Amy before anyone else does.

After agonizing over the situation for far too long, Ben travels to New York so he can tell Amy about the baby before she hears it from someone else. Also, Ricky spends some time with his biological mother, who is 24 hours away from serving a jail sentence. Adrian spills the beans at school about her pregnancy in an unusual way, and Ashley thinks she might be in love with the wrong person.

Amy has not been taking anyone's phone calls for three days, and Ben is not handling it well, leading Grace to believe that she might have another chance with him. Meanwhile, George plans a romantic evening with Anne, and Ben accompanies Adrian to her first doctor's appointment. The tension continues between Ricky and Ashley, and Ricky approaches Ruben with a special request. Lastly, Amy contacts Adrian to offer her friendship and support.

While, Grace tries to find a boyfriend for Griffin, Ashley now has feelings for both Grant and Ricky.

Ricky goes to visit Amy in New York. Meanwhile, Ben goes with Adrian to a sonogram appointment. Jack is torn between letting Madison sleep over and Grace continues to build her relationship with Grant.

Ben and Adrian are thinking about engagement but both have Ricky and Amy in mind when making their decisions while Amy's parents tell her that they plan to remarry. In New York, Amy's fellow teenage mothers take her out for her birthday.

Amy calls Ricky to let him know she's angry that everybody, including her parents, have forgotten her birthday. Meanwhile, Adrian has a medical scare with her pregnancy, which leads to some problems with Ben, and Grace's relationship with Grant heats up. Madison's father finds out some unsettling information about his daughter's sex life with Jack, and as Leo gets angrier with Ben, he gains some perspective on his own marriage.

As Grant and Grace grow, Amy and Ricky try to find out if they should be a couple.

Ashley tries to persuade Ricky to have sex with her and Amy takes a stance against her actions. Anne questions whether George actually wants to get married, contrary to his original claims, and suggests that they finally spit up without hurting their children. Elsewhere, Adrian believes that Ricky is just using Amy for sex and Grace wonders if Adrian is considering marriage. Meanwhile, Amy goes out with Ricky; and Grace and Grant prepare for camp.

Amy wants Ricky to get tested for various STDs, after she sees him talking to someone he used to date. Ben and Adrian's baby's gender is revealed. Amy considers having sex with Ricky.

Jesse makes some decisions about his and Lauren's relationship, now that he is headed for college. Madison becomes interested in a new guy... her boss who is in his mid-20s. Grant tells Grace that he wants her to be tested for STDs before they consider having sex.

Ricky finds out that his mother is dating a woman, Ashley's homeschooling isn't going very well, and Ben asks Ruben and Cindy a question.

Both Amy and Ricky feel under pressure now that Ben has proposed to Adrian, which causes Amy to suggest taking their relationship to the next level. Ben suggests an alternative to a big wedding to Adrian, and Lauren's mother and step-father are having problems.

Ashley starts being home-schooled. Ben and Adrian look for a place to live. Grace worries about the future regarding her relationship with Grant. Jack & Madison take a break from sex. Lauren is crushing on a new guy.

No one is happy about Amy's plans to move in with Ricky -- including Ricky. Leo encourages Ricky to think about college, and Anne accuses Amy of rushing things with Ricky as a way of competing with Ben and Adrian. Madison is uneasy with Jack's decision not to have sex with her, and Grace asks her mother for a sleepover with Grant.

Grace and Adrian shop for a wedding dress, and Amy is cornered into planning a baby shower for Adrian. Grace and Grant have relationship problems.

The entire town is in an uproar over Adrian's impending baby shower.

Adrian hosts a baby shower. Lauren, Madison, Amy, and Grace all attend. Ricky finds out that Leo is having problems with stress.

Adrian makes plans to come back to school a week after the birth of the baby in order to stay on track for graduation. Adrian and Ben both have misgivings before the wedding, and Ricky realizes that romancing Amy may be more effective than pressuring her for sex.

Amy is upset that Ricky is the kind of guy that could never get married, after she realizes Jack has a key to his apartment and she doesn't. Ben and Adrian's wedding reception is held at the school.

Adrian and Ben prepare for the imminent arrival of their daughter. When Adrian experiences discomfort, the couple - believing she is about to go into labor - are instructed by their doctor to leave for the hospital. Ben and Adrian agree not to call anyone until they know more, but as word spreads she is in the hospital, family and friends gather there to share the joyous occasion. But the couple learn some devastating news that will change their lives forever and will need those closest to them for support.

Adrian is in a deep depression, refusing to leave the house, while Ben struggles to keep it all together after losing their baby. Ben has returned to school, but is devastated and angry about the situation. Ben asks Amy to visit Adrian at home to help her through this difficult time. Meanwhile, Amy feels a little guilty for being so happy in her own life – she’s in love with Ricky and their relationship seems to be growing stronger by the day. Ricky insists they shouldn’t feel guilty and invites Amy and John to move in with him.

Betty applies her own brand of comfort for Adrian's mourning. Ashley decides to go ahead with her cross-country road trip.

Grace goes away on a medical mission, while Peter suspects the worst.

There's an emergency with John resulting in Ricky & Amy taking him to the ER. Grace meets a new guy named Daniel. Adrian wants Ben to tell her how he really feels.

As Ben continues to examine his options, he and Adrian have a huge blowout. Adrian finally gathers the courage to take all of the baby's things out of the would-be nursery.

Adrian comes to Ben's defense as a bunch of students begin to blame him for their daughter's death. Kathleen has an interview at a college. Grace gets pranked by Ricky.

With the help of Amy, Ricky tries to get in to college. Grace is having trouble fitting in to Daniel's college life.

It's time for senior prom!! Amy is mad that Ricky doesn't want to go so she pressures him into taking her to prom. Adrian and Ben go together, and Amy finds out Adrian is trying to get pregnant. Later, after the dance Adrian tries to seduce Ben into sleeping with her so she can be prego and keep him in the marriage.

Adrian has a new goal in mind.

Nora finds a new place to live, Ricky has an unexpected visitor who has run into legal problems after texting nude photos of his girlfriend, and Grace plays matchmaker

Adrian is introduced to the brother of one of Daniel's friend, and sparks fly. Amy hopes for a proposal from Ricky -- who has a surprise of his own.

Mid-Season Finale: A marriage is on the rocks. The wife is going to college and files for divorce -- and it's not Adrian. The seniors prepare for graduation.

It's graduation day - and both Ricky and Jack have something to say. A divorce attorney obtains incriminating photos at the graduation ceremonies.

Amy and Ricky are now engaged, but Amy starts to consider what marriage may really mean.

Summer school is the backdrop for another series of intrigues: Amy, Madison and Lauren argue, Henry is in the doghouse with both Ben and Alice, and someone is found to be trying pot.

Kathleen struggles with a decision whether or not to allow a boy from the country to stay with them instead of attending boarding school

Amy is increasingly short with everyone in her life, including Ricky, leaving him wondering what is going on with her, but he is not prepared when she reveals that she might be pregnant again. Ben, determined to get permission from Dylan's parents to see her, makes another attempt to win them over, but it doesn't turn out quite like he hoped when he ends up sharing too much information about his family. Grace is unsure how to react to her mother's shocking news about the secret her father kept from everyone and turns to Jack for support. And, Anne's evening with Nora raises questions for George.

Dylan and her pals surprise Ben at school, while Grace doesn't want Jacob attending school with her. Elsewhere, Kathleen tries to understand her late husband's secrets; and an overburdened Amy acts ornery at home with Ricky.

Ben and Dylan go on their first real date together. Elsewhere, Tom runs into problems with police.

A desperate Kathleen resorts to bribery to get Grace to talk to Jacob. Elsewhere, Dylan attempts to befriend Adrian.

Amy learns she's doing poorly in summer school, so her dad tutors her and provides her with some life advice.

Amy announces a wedding date, and the news travels quickly. Meanwhile, a rumor concerning Anne surfaces.

Amy's mistaken about why she's the focus of gossip, and Grace grows jealous of her. Elsewhere, Ashley and her mom return from traveling abroad; and Ben asks his father to let him enroll in Dylan's school.

In the fourth-season finale, Anne reveals some news to her loved ones. Meanwhile, Ben considers transferring to Dylan's school.

Ricky and Amy decide to run off together to escape all the drama at home with Anne's recent announcement that she's gay and Ashley's return home. But, will they decide to say 'I Do'? Meanwhile, Ben struggles with the knowledge that he may have contributed to burning down Dylan's school. And, now that Adrian is done with summer school and graduated, she's looking forward to college and Grace makes some difficult decisions about her relationships.

Amy and Ricky return home with big news. Meanwhile, Grace continues to shut out Adrian; Leo discusses the fire with Dylan's parents; and Anne learns how serious things are between Ashley and Toby.

Amy begins her senior year of high school and gives guidance to a new student, who's six months pregnant. Meanwhile, Ricky gets an opportunity to work for Leo full-time; Ben shares his feelings with Amy; Ricky and Amy watch a video of their wedding.

Amy and Ricky's family and friends want to host a wedding reception for them, but Amy and Ricky are hesitant to accept their offer. Meanwhile, Ashley's parents find out she ran off to culinary school overseas; and Ruben advises Ben to get a lawyer.

Ricky begins college, where he reunites with an old pal from foster care. Elsewhere, Ben's legal troubles are behind him, but he still must face Leo's wrath; Ethan takes an interest in Kathy; and George makes a promise to Kathleen.

Grace persuades her friends to attend church, but her plan doesn't come together as she expected.

Amy is displeased to see Kathy hanging out with a bad crowd.

Amy envies Ricky's life as a college student.

Ben and Amy have a candid discussion about their relationship.

Adrian and Omar think about moving in together; Anne starts to plan Amy's wedding.

Jack remains in the hospital; Ricky discusses the wedding with George.

t's Christmas Eve and Ricky and Amy are celebrating their first holiday together as a family. Ricky talks about an old tradition he had as a kid of sneaking into a toy shop with his fellow foster care friends every Christmas Eve. Ricky, Amy & John decide to continue the tradition and sneak their way into Hedy's and are amazed by the holiday fun inside. Ethan, dressed as Santa to surprise John, brings a very pregnant Kathy with him to join in on the fun. Meanwhile, Grace stays by Jack's side at the hospital hoping for a miracle while he's still in a coma since the beating. But, everyone is in for a holiday surprise when Kathy suddenly goes into labor.

Amy and Ricky continue planning their wedding, so Amy buys her dress at a thrift store. The dress is a little worse for wear, but only Amy sees the potential to make it great. Meanwhile, Ricky is upset about the dress and Adrian thinks the dress reflects her feelings about getting married.

Ben is in a euphoric mood, while driving Ethan to the airport he has an epiphany that Amy may not have been his first love. Omar leaves his student teaching job and proposes to Adrian. Ethan pleads with Kathy's parents to let her return home with him. Ricky confides in Dr. Fields about Amy's lack of enthusiasm towards their marriage - and Amy confides in Dr. Fields that she has other hopes and dreams. Meanwhile, Jack is restless with his injuries and enlists Grace's help. And, George meets with David to discuss Robie's paternity.

Anne's anger toward George prompts her to call off Ricky and Amy's wedding, exposing the truth about their marital status to others. Meanwhile, Jack is reluctant to get the help he needs; Kathy and Chloe's newfound friendship worries Ethan.

Amy and Ricky's relationship grows increasingly strained when Amy decides she wants to tour a college in New York. Leo questions Ricky about his friendship with Clementine. Jack goes to extreme lengths to protect himself with potentially devastating consequences. Adrian is not happy when Omar goes on a business trip without her, especially when she learns that Amy is on the same flight. George's need to distance himself from Anne leads him down a new career path. Meanwhile, Cierra offers to tutor Ethan in math but his pride keeps him from accepting her help.

George and Reverend Stone insist that Jack see a therapist, but it's Adrian's advice that ultimately persuades him to go. Ricky feels Amy's absence as he juggles taking care of John with his work and school responsibilities. Cathy is stunned when she learns that her ex-boyfriend wants to see their baby. Amy realizes that she doesn't want to lose Ricky. Meanwhile, Leo secures an important business account.

Ricky tries to find a way to support Amy's dream of going to Hudson University, despite everyone's reservations about their relationship. Amy worries about her future when her meeting with the college counselor doesn't go quite like she'd expected.

Ethan is convinced no adult actually uses algebra, but a chance meeting with Danica McKellar helps him look at math in a different light. Amy's frantic search for her missing wedding bands leads her to Ben, who advises her to break-up with Ricky before it's too late. George and Kathleen's romantic dinner is interrupted by an uninvited guest. Meanwhile, Mrs. Stone confronts Grace about her relationship with Jack.

Amy and Ricky announce they will get married the day after Amy graduates from high school, but everyone is skeptical that the wedding will actually happen. Grace and Jack announce their engagement, but it's soon clear that Grace is having second thoughts about her decision. George and Kathleen are distracted from their secret plans when their mothers arrive for unexpected visits, but they eventually include their families in a special surprise. Meanwhile, Ethan is jealous when Kathy agrees to help Brian prepare for the spelling bee.

Amy, Adrian and Grace struggle to reconcile their pending marriages with their individual dreams. Anne begins to feel like an outsider in her own family but soon finds an unexpected ally in Kathleen. Kathy and Ethan get into a fight after Ethan questions the status of their relationship. Leo worries about Ben's obsession with Amy. Meanwhile, Chloe reconnects with someone from her past.

Adrian is devastated by Omar's decision and takes her pain out on Ricky and Jack. Ben refuses to give up on his dream of reuniting with Amy and makes a shocking confession to Alice. Ethan and Margaret have an honest conversation about his relationship with Kathy. Meanwhile, Clementine returns to town and pays Ricky a visit.

Ricky suspects that Amy is hiding something and confronts her about their future. Everyone gives Ethan some much-needed advice about his love life. Amy is furious when she learns the lengths Ben will go to in order to win her back. Jack's commitment to Grace is tested, and Henry makes an important decision about his future. Meanwhile, Chloe finally puts her past demons to rest.

High school graduation is finally here, prompting everyone to reminisce about how much their lives have changed over the past few years. Amy's relationships with Ricky and Ben weigh heavily on her mind, while Grace contemplates Jack's place in her life. Meanwhile, Adrian is ecstatic when an unexpected visitor knocks on her door.